General

  • Target

    477ce9ba18954fcc3f713534045423f42f45c693607207bc47775ffa6ecb3107

  • Size

    718KB

  • Sample

    210722-45crqshjae

  • MD5

    a54ace3d56d2608617113615dd514ecf

  • SHA1

    a57095e709a7218398f1d9fa40d4d8f4e1a77881

  • SHA256

    477ce9ba18954fcc3f713534045423f42f45c693607207bc47775ffa6ecb3107

  • SHA512

    5e434eb95f52bd5fd34d6de1087167a752f995b0f8f8d54c1a99d3e7ec0078dff0dcf351dd760dd3f6aa233bd7d74929e5e667d1972e9878d164088cec8213a9

Malware Config

Extracted

Family

vidar

Version

39.6

Botnet

517

C2

https://sslamlssa1.tumblr.com/

Attributes
  • profile_id

    517

Targets

    • Target

      477ce9ba18954fcc3f713534045423f42f45c693607207bc47775ffa6ecb3107

    • Size

      718KB

    • MD5

      a54ace3d56d2608617113615dd514ecf

    • SHA1

      a57095e709a7218398f1d9fa40d4d8f4e1a77881

    • SHA256

      477ce9ba18954fcc3f713534045423f42f45c693607207bc47775ffa6ecb3107

    • SHA512

      5e434eb95f52bd5fd34d6de1087167a752f995b0f8f8d54c1a99d3e7ec0078dff0dcf351dd760dd3f6aa233bd7d74929e5e667d1972e9878d164088cec8213a9

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Vidar Stealer

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Loads dropped DLL

    • Modifies file permissions

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Accesses 2FA software files, possible credential harvesting

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Adds Run key to start application

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

File Permissions Modification

1
T1222

Modify Registry

2
T1112

Install Root Certificate

1
T1130

Credential Access

Credentials in Files

3
T1081

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

3
T1005

Tasks